properly declare new lapack functions
properly declate T variants of comparisons
correct findgnuplotexe local var definition
added paths.uname()
gnuplot uses paths.uname() to identify os.
fixed lua_uname() code for windows
added paths.findprogram and adjust gnuplot.lua
more aggressive program search (win)
fix for path.findprogram
clean quotes in results from paths.findprogram
updated